MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 ef0ae9f94fe4bee89cbc48896b03e8040bead8789039f434151caa8df01b6d52. While MalwareBazaar tries to identify whether the sample provided is malicious or not, there is no guarantee that a sample in MalwareBazaar is malicious.

Database Entry


DCRat


Vendor detections: 16


Intelligence 16 IOCs YARA 11 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: ef0ae9f94fe4bee89cbc48896b03e8040bead8789039f434151caa8df01b6d52
SHA3-384 hash: 22210467100ee44c4465cdabd205b7a0d491a91ddb977ea5320161528ac9e8003852411be8d1f0eb2aa4739ed601209a
SHA1 hash: bbc5d68213c6693871c4759e0c3790de367a1ae5
MD5 hash: baa98be8c9eadea500c27b1067046aab
humanhash: arizona-ink-cola-wyoming
File name:DCRatBuildмщй.exe
Download: download sample
Signature DCRat
Create hunting rule
File size:1'164'937 bytes
First seen:2024-07-14 14:28:35 UTC
Last seen:2024-07-24 22:47:46 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash fcf1390e9ce472c7270447fc5c61a0c1 (865 x DCRat, 118 x NanoCore, 94 x njrat)
ssdeep 24576:U2G/nvxW3Ww0tqUIElndz0cCYenFF1hbTpzlj:UbA30qM4meFF/H
Threatray 508 similar samples on MalwareBazaar
TLSH T15F4539017E488E11F0191633C6EF490847B4BC156AA6EB2B7EBA376D59123937C1DECB
TrID 76.0% (.EXE) WinRAR Self Extracting archive (4.x-5.x) (265042/9/39)
16.5% (.CPL) Windows Control Panel Item (generic) (57583/11/19)
3.0% (.EXE) Win64 Executable (generic) (10523/12/4)
1.4% (.EXE) Win16 NE executable (generic) (5038/12/1)
1.2% (.EXE) Win32 Executable (generic) (4504/4/1)
dhash icon 9494b494d4aeaeac (832 x DCRat, 172 x RedLineStealer, 134 x CryptOne)
Reporter nickkuechel
Tags:DCRat exe

Intelligence

File Origin
# of uploads :
2
# of downloads :
354
Origin country :
US US
Vendor Threat Intelligence
Malware family:
dcrat
Create hunting rule
ID:
1
File name:
ef0ae9f94fe4bee89cbc48896b03e8040bead8789039f434151caa8df01b6d52.exe
Verdict:
Malicious activity
Analysis date:
2024-07-14 14:33:36 UTC
Tags:
rat dcrat remote darkcrystal evasion netreactor
Link:
https://app.any.run/tasks/7cd5d488-9e73-4523-bb15-153f2163297a

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.VBS.Encrypted.Gen.UNOFFICIAL
Create hunting rule

Win.Trojan.Uztuby-9855059-0
Create hunting rule

Win.Ransomware.Clinix-9868408-0
Create hunting rule

Win.Packed.Msilmamut-9950860-0
Create hunting rule

Win.Packed.Uztuby-9963900-0
Create hunting rule

Win.Packed.Uztuby-9969968-0
Create hunting rule

Win.Malware.Uztuby-9972880-0
Create hunting rule

Win.Trojan.DarkKomet-9976180-0
Create hunting rule

Win.Trojan.Uztuby-10010740-0
Create hunting rule

SecuriteInfo.com.Trojan.Rasftuby.Gen.14.10239.27368.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
99.1%
Link:
https://cyber-fortress.com/docs/result/index.php?id=6693e0afbcca3f923eb4689dwin7simulatehigh_evasion
Tags:
Banker Encryption Execution Generic Network Other Static Stealth Runner Dexter
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Searching for the window
Сreating synchronization primitives
Searching for synchronization primitives
Creating a file
Creating a process from a recently created file
Running batch commands
Creating a process with a hidden window
Using the Windows Management Instrumentation requests
Launching a process
Creating a file in the Program Files subdirectories
DNS request
Connection attempt
Sending an HTTP GET request
Sending a custom TCP request
Unauthorized injection to a recently created process
Enabling autorun by creating a file
Verdict:
Malicious
Labled as:
Trojan.MSIL.Basic.8.Gen;Trojan.Uztuby
Link:
https://www.hybrid-analysis.com/sample/ef0ae9f94fe4bee89cbc48896b03e8040bead8789039f434151caa8df01b6d52
Result
Verdict:
MALICIOUS
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/f70648da-d1d0-4825-9f3b-cc7802935851
Result
Threat name:
DCRat
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1472876
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code contains potential unpacker
AI detected suspicious sample
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
C2 URLs / IPs found in malware configuration
Creates processes via WMI
Drops executable to a common third party application directory
Found malware configuration
Machine Learning detection for dropped file
Machine Learning detection for sample
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Sigma detected: Files With System Process Name In Unsuspected Locations
Uses schtasks.exe or at.exe to add and modify task schedules
Windows Scripting host queries suspicious COM object (likely to drop second stage)
Yara detected DCRat
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1472876 Sample: DCRatBuild#U2568#U255d#U256... Startdate: 14/07/2024 Architecture: WINDOWS Score: 100 54 Found malware configuration 2->54 56 Antivirus detection for dropped file 2->56 58 Antivirus / Scanner detection for submitted sample 2->58 60 10 other signatures 2->60 10 DCRatBuild#U2568#U255d#U2564#U00eb#U2568#U2563.exe 3 6 2->10         started        13 VqABfftFwcKlACyfDVZOujXZGOk.exe 2 2->13         started        16 VqABfftFwcKlACyfDVZOujXZGOk.exe 3 2->16         started        process3 file4 44 C:\...\ProviderBrowserbroker.exe, PE32 10->44 dropped 46 C:\msdriversavesrefCrt\lhZZ95I5.vbe, data 10->46 dropped 18 wscript.exe 1 10->18         started        72 Multi AV Scanner detection for dropped file 13->72 signatures5 process6 signatures7 62 Windows Scripting host queries suspicious COM object (likely to drop second stage) 18->62 21 cmd.exe 1 18->21         started        process8 process9 23 ProviderBrowserbroker.exe 1 22 21->23         started        27 conhost.exe 21->27         started        file10 36 C:\...\VqABfftFwcKlACyfDVZOujXZGOk.exe, PE32 23->36 dropped 38 C:\Recovery\VqABfftFwcKlACyfDVZOujXZGOk.exe, PE32 23->38 dropped 40 C:\ProgramData\Adobe\RuntimeBroker.exe, PE32 23->40 dropped 42 6 other malicious files 23->42 dropped 64 Antivirus detection for dropped file 23->64 66 Multi AV Scanner detection for dropped file 23->66 68 Machine Learning detection for dropped file 23->68 70 3 other signatures 23->70 29 ProviderBrowserbroker.exe 2 9 23->29         started        signatures11 process12 file13 48 C:\msdriversavesrefCrt\dllhost.exe, PE32 29->48 dropped 50 C:\...\VqABfftFwcKlACyfDVZOujXZGOk.exe, PE32 29->50 dropped 52 C:\Users\user\AppData\...\SbArq942hj.bat, DOS 29->52 dropped 32 schtasks.exe 29->32         started        34 schtasks.exe 29->34         started        process14
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/ef0ae9f94fe4bee89cbc48896b03e8040bead8789039f434151caa8df01b6d52
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/ef0ae9f94fe4bee89cbc48896b03e8040bead8789039f434151caa8df01b6d52/
Threat name:
ByteCode-MSIL.Trojan.Uztuby
Create hunting rule
Status:
Malicious
First seen:
2024-07-14 06:56:50 UTC
File Type:
PE (Exe)
Extracted files:
17
AV detection:
28 of 38 (73.68%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=54fot6kp4s7orhf4jcewwa7iaqf6vwdysa47inavdsvi34a3nvja._file
Verdict:
malicious
Similar samples:
1a39cff5d5b0b550cd9b30f08c0e32430c2e1b92aecc663d4151789e54d13f64
DCRat
32619382ab72416dff258bff30a8b505d6e69e818345612892a121c28f3b23b0
DCRat
49691df1941f383a519f87b72d504014b93e45bbf5de5fadf2b46e9f7d3a942b
DCRat
c9db6874de4f8439448b1518ca66a3225df40b702882fc650dc5b64272131e70
DCRat
+ 498 additional samples on MalwareBazaar
Result
Malware family:
dcrat
Create hunting rule
Score:
  10/10
Tags:
family:dcrat infostealer rat
Link:
https://tria.ge/reports/240714-rtjrhawfqa/
Behaviour
Modifies registry class
Modifies system certificate store
Scheduled Task/Job: Scheduled Task
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Uses Task Scheduler COM API
Enumerates physical storage devices
Drops file in Program Files directory
Drops file in Windows directory
Looks up external IP address via web service
Checks computer location settings
Executes dropped EXE
Loads dropped DLL
DCRat payload
DcRat
Process spawned unexpected child process
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/5ccd04f8-ad45-43ec-aef5-f6baaa41feb6
Unpacked files
SH256 hash:
9d364dd8e12cfaec96b41f029e348ce456bd8fb914fa7f1890ef0e7328475096
MD5 hash:
709c7119a6869d6c1a1852aa2339316b
SHA1 hash:
19ec52e6a5383f9ee84a8517ab7216abc511931f
Link:
https://www.unpac.me/results/68835463-9075-45b2-87ce-6f7292f298fd/
SH256 hash:
ef0ae9f94fe4bee89cbc48896b03e8040bead8789039f434151caa8df01b6d52
MD5 hash:
baa98be8c9eadea500c27b1067046aab
SHA1 hash:
bbc5d68213c6693871c4759e0c3790de367a1ae5
Detections:
win_xorist_auto
Create hunting rule
Link:
https://www.unpac.me/results/68835463-9075-45b2-87ce-6f7292f298fd/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/ef0ae9f94fe4bee89cbc48896b03e8040bead8789039f434151caa8df01b6d52

YARA Signatures

MalwareBazaar uses YARA rules from several public and non-public repositories, such as YARAhub and Malpedia. Those are being matched against malware samples uploaded to MalwareBazaar as well as against any suspicious process dumps they may create. Please note that only results from TLP:CLEAR rules are being displayed.

Rule name:DebuggerCheck__API
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DotNet_Reactor
Create hunting rule
Author:@bartblaze
Description:Identifies .NET Reactor, which offers .NET code protection such as obfuscation, encryption and so on.
Rule name:maldoc_find_kernel32_base_method_1
Create hunting rule
Author:Didier Stevens (https://DidierStevens.com)
Rule name:MD5_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for MD5 constants
Rule name:NET
Create hunting rule
Author:malware-lu
Rule name:PureCrypter
Create hunting rule
Author:@bartblaze
Description:Identifies PureCrypter, .NET loader and obfuscator.
Reference:https://malpedia.caad.fkie.fraunhofer.de/details/win.purecrypter
Rule name:RIPEMD160_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for RIPEMD-160 constants
Rule name:SelfExtractingRAR
Create hunting rule
Author:Xavier Mertens
Description:Detects an SFX archive with automatic script execution
Rule name:SHA1_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for SHA1 constants
Rule name:win_xorist_auto
Create hunting rule
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:Detects win.xorist.

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Web download

DCRat

Executable exe ef0ae9f94fe4bee89cbc48896b03e8040bead8789039f434151caa8df01b6d52

(this sample)

  
Delivery method
Distributed via web download

BLint

The following table provides more information about this file using BLint. BLint is a Binary Linter to check the security properties, and capabilities in executables.

Findings
IDTitleSeverity
CHECK_AUTHENTICODEMissing Authenticodehigh
CHECK_DLL_CHARACTERISTICSMissing dll Security Characteristics (HIGH_ENTROPY_VA)high
Reviews
IDCapabilitiesEvidence
GDI_PLUS_APIInterfaces with Graphicsgdiplus.dll::GdiplusStartup
gdiplus.dll::GdiplusShutdown
gdiplus.dll::GdipAlloc
WIN32_PROCESS_APICan Create Process and ThreadsKERNEL32.dll::CloseHandle
KERNEL32.dll::CreateThread
WIN_BASE_APIUses Win Base APIKERNEL32.dll::TerminateProcess
KERNEL32.dll::LoadLibraryW
KERNEL32.dll::LoadLibraryExA
KERNEL32.dll::LoadLibraryExW
KERNEL32.dll::GetSystemInfo
KERNEL32.dll::GetStartupInfoW
WIN_BASE_EXEC_APICan Execute other programsKERNEL32.dll::AllocConsole
KERNEL32.dll::AttachConsole
KERNEL32.dll::WriteConsoleW
KERNEL32.dll::FreeConsole
KERNEL32.dll::SetStdHandle
KERNEL32.dll::GetConsoleMode
KERNEL32.dll::GetConsoleCP
WIN_BASE_IO_APICan Create FilesKERNEL32.dll::CreateDirectoryW
KERNEL32.dll::CreateHardLinkW
KERNEL32.dll::CreateFileW
KERNEL32.dll::CreateFileMappingW
KERNEL32.dll::DeleteFileW
KERNEL32.dll::MoveFileW
KERNEL32.dll::MoveFileExW

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